Foreign Trade Zones: The Duty-Free Loophole That Becomes a False Claims Act Problem

Foreign Trade Zones allow companies to import, store, and manufacture goods without paying customs duties until the goods enter U.S. commerce — and to pay no duties at all on goods that are re-exported. These are legitimate and valuable tools for U.S. manufacturers and distributors. But the same features that make FTZs attractive for lawful commerce make them attractive for fraud: removing merchandise from a zone without proper entry, manipulating the inverted tariff election to pay a lower rate than the law allows, and using zone-to-zone transfers to obscure the origin or classification of goods. Each of these generates a false statement on a customs entry, and each is actionable under the False Claims Act.

Foreign Trade Zones occupy a peculiar position in U.S. customs law. Physically located within the United States, they are treated for customs purposes as though they were outside U.S. territory. Goods admitted to an FTZ are not subject to duties until they are formally entered into domestic commerce. Goods that are re-exported from the zone never incur duties at all. And goods that are manufactured in the zone may, in certain circumstances, be entered at a lower duty rate than their imported components would have carried individually. These benefits are authorized by the Foreign-Trade Zones Act of 1934 and administered under the joint supervision of the FTZ Board and CBP. They exist for a sound policy reason: to make U.S.-based operations competitive with foreign manufacturing by removing the customs penalty that would otherwise attach to imported inputs.

The FCA exposure arises when companies exploit the zone’s special status to avoid duties they actually owe. Because FTZ operations are complex, documentation-intensive, and supervised primarily through inventory records rather than physical inspection, the opportunities for misrepresentation are significant — and the people who work inside zone operations are often the first to see them.

How Foreign Trade Zones Work

Merchandise is admitted to an FTZ on CBP Form 214. Once inside, it can be stored indefinitely, manipulated, assembled, or — with FTZ Board approval — manufactured into a different product. No duties are owed while the goods remain in the zone. When merchandise leaves the zone, its customs treatment depends on where it goes. Goods re-exported to a foreign country are duty-free. Goods entered into U.S. commerce are subject to formal customs entry, at which point duties, antidumping and countervailing duties, and other charges are assessed.

Two features of FTZ law are especially relevant to fraud analysis. First, when goods are manufactured in a zone, the operator may elect to pay duties at the rate applicable to either the imported components or the finished product — whichever is lower. This is the “inverted tariff” benefit: if a finished product carries a lower duty rate than its foreign-sourced inputs, the manufacturer can enter the finished product at the lower rate, effectively reducing its duty obligation on every unit produced. Second, goods can move between zones or between a zone and a bonded warehouse through “constructive transfers” — entries filed with CBP that treat the merchandise as having left and re-entered zone status, even though it may not have moved physically. These transfers are tracked through documentation, not physical inspection.

Removal Without Proper Entry

The most direct form of FTZ fraud is removing merchandise from a zone without filing the required customs entry. Goods that leave the zone and enter domestic commerce without entry avoid all duties, taxes, and fees that would otherwise apply. The FTZ operator’s bond is supposed to guarantee compliance, and CBP conducts periodic compliance reviews, but the day-to-day movement of goods in and out of a zone depends heavily on the operator’s inventory records. When those records do not accurately reflect what left the zone, duties go unpaid.

This can happen through outright diversion — goods physically removed from the zone and delivered to domestic customers without any entry filed — or through inventory manipulation, where the zone’s records are adjusted to show that merchandise was re-exported or destroyed when it was actually entered into domestic commerce. In either case, the false or missing customs entry is a false statement (or an omission that conceals an obligation to pay) actionable under the FCA’s reverse false claims provision. An employee in warehouse operations, shipping, or inventory management who knows that goods left the zone without entry — or whose records show re-exports that did not actually occur — has identified the core of the fraud.

Inverted Tariff Manipulation

The inverted tariff election is one of the most valuable benefits of FTZ manufacturing, and one of the most susceptible to abuse. The election allows a manufacturer to pay duties on the finished product rather than on the imported components when the finished product carries a lower rate. But the election is subject to conditions: the manufacturing activity must be approved by the FTZ Board, the components must actually be used in the production of the finished product, and the finished product must be accurately classified.

The fraud arises when any of these conditions is not met. A company might claim the inverted tariff benefit for manufacturing activity that the FTZ Board has not approved. It might misclassify the finished product to obtain a lower rate than the product actually carries. Or it might inflate the proportion of domestic content in the finished product to reduce the dutiable value of the foreign inputs. Separately, items subject to antidumping or countervailing duty orders must be admitted in “privileged foreign status” under 19 C.F.R. § 146.41, which locks in the AD/CVD obligation. A company that admits AD/CVD-subject merchandise without electing privileged foreign status — and then enters the manufactured product at a rate that does not reflect the AD/CVD exposure — has used the zone to circumvent a trade remedy, which the regulations explicitly prohibit.

An employee in production, trade compliance, or zone administration who sees that the finished product classification on the entry does not match the actual product, or that AD/CVD-subject components were not placed in privileged foreign status, has identified a misrepresentation that generates FCA liability on every affected entry.

Zone-to-Zone Transfers and Constructive Transfer Abuse

Constructive transfers are a necessary feature of FTZ administration: they allow merchandise to be entered and its duty status determined without requiring physical movement. But the same mechanism can be used to launder the classification, origin, or status of goods. Merchandise admitted to one zone under one classification can be constructively transferred to another zone or re-admitted under a different classification, with the paperwork trail obscuring the fact that the goods have not changed. Similarly, zone-to-zone transfers can be used to reset the clock on goods that have been in a zone for an extended period, or to move goods between related-party zones in a way that manipulates the dutiable value.

The weekly entry procedure — which allows zone operators to file a single entry covering an entire week’s removals — creates an additional vulnerability. If the weekly entry understates the quantity of goods actually removed from the zone during the week, the operator has underpaid duties on the unreported removals. The pro forma invoice or schedule that accompanies the weekly entry is a representation to CBP, and an intentional understatement is a false statement.

An employee in zone administration, logistics, or accounting who processes constructive transfer paperwork and knows that the reclassification does not reflect a genuine change in the goods — or who prepares weekly entries that do not match actual removal volumes — has observed a pattern that may support a qui tam claim.

What Employees Should Watch For

FTZ fraud is most visible to the people who operate the zone day to day: warehouse managers, zone administrators, inventory analysts, production supervisors, customs brokers, and trade compliance officers. These are the people who admit merchandise, track its status, prepare entries, and know whether the paperwork matches reality.

Red flags include: merchandise leaving the zone without corresponding customs entries; inventory records adjusted to show re-exports or destructions that did not occur; finished products entered under a classification that does not match their actual specifications; AD/CVD-subject components admitted without privileged foreign status; weekly entry schedules that consistently understate actual removals; and constructive transfer paperwork that reclassifies goods without any corresponding change in the merchandise itself. The False Claims Act’s qui tam provisions allow individuals with original knowledge of these patterns to file suit on behalf of the United States and share in 15 to 30 percent of any recovery. If you work inside an FTZ operation and have observed conduct consistent with any of the scenarios described above, contact us for a confidential consultation.